herrbuerger

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  * I am herrbuerger on github.
  * I am herrbuerger (https://keybase.io/herrbuerger) on keybase.
  * I have a public key ASDehSwsfC_aKN2WUeEHyWdANSMW8ppk7RjIDs8tFXekTQo

To claim this, I am signing this object:

herrbuerger

PSQL

Magic words:

psql -U postgres

If run with -E flag, it will describe the underlaying queries of the \ commands (cool for learning!).

Most \d commands support additional param of __schema__.name__ and accept wildcards like *.*

herrbuerger

#include <Python.h>
#include <numpy/arrayobject.h>
#include "euclidean.h"
 
/* Docstrings */
static char module_docstring[] =
    "This module provides an interface for calculating squared euclidean distance";
static char euclidean_docstring[] =
    "Calculate the squared euclidean distance of two 128-dimensional vectors";
 

herrbuerger

from annoy import AnnoyIndex

a = AnnoyIndex(3)
a.add_item(10, [1, 0, 0])
a.add_item(11, [0, 1, 0])
a.add_item(13, [0, 0, 1])
a.build(-1)

print a.get_nns_by_item(13, 10)
print a.get_nns_by_item(1, 10)

herrbuerger

from annoy import AnnoyIndex
index = AnnoyIndex(1)

for x in range(10000):
  id = "%d000%d" % (x,x)
  index.add_item(int(id),[x])

herrbuerger

48000693
49000693
50000693
51000693
52000693
53000693
54000693
55000693
56000693
57000693

herrbuerger

Rotationg snapshots for Elasticsearch (poor-man's version)

This is a very basic method to do rotating snapshots for Elasticsearch. For this to work you will need to have jq installed (http://stedolan.github.io/jq/).

PLEASE, PLEASE, PLEASE don't put this blindly in your commandline and execute it :)

curl -s -S -XGET "localhost:9200/_snapshot/my_s3_repository/_all?pretty=true" | jq '.snapshots[] | .snapshot + " " + .end_time' | sed 's/^.\(.*\).$/\1/' | sort -k 2 -r | awk '{ if (NR > 1) { system("curl -XDELETE " "localhost:9200/_snapshot/my_s3_repository/"$1) } } END { system("curl -XPUT " "localhost:9200/_snapshot/my_s3_repository/`date +\%s`") }'

Details

herrbuerger

from math import sqrt

def confidence(ups, downs):
    n = ups + downs

    if n == 0:
        return 0

    z = 1.96 #1.96 = 95%
    phat = float(ups) / n

herrbuerger

➜  sample  imagedups . --search -f 92bc12786d430083be1e166a2174b4888ba0b4ba.jpg
92bc12786d430083be1e166a2174b4888ba0b4ba.jpg
Traceback (most recent call last):
  File "/usr/local/bin/imagedups", line 228, in <module>
    prog.main()
  File "/usr/local/bin/imagedups", line 60, in main
    self.cmd_search()
  File "/usr/local/bin/imagedups", line 90, in cmd_search
    self.compare_with_db(hashdb, self.args.samplefile)
  File "/usr/local/bin/imagedups", line 193, in compare_with_db

herrbuerger

  <context-param>
    <param-name>net.myrrix.web.InitListener.USER_NAME</param-name>
    <param-value>admin</param-value>
  </context-param>
  <context-param>
    <param-name>net.myrrix.web.InitListener.PASSWORD</param-name>
    <param-value>password</param-value>
  </context-param>